18906314442873 has 32 divisors (see below), whose sum is σ = 30415904115072. Its totient is φ = 10291095360000.

The previous prime is 18906314442871. The next prime is 18906314442877. The reversal of 18906314442873 is 37824441360981.

It is not a de Polignac number, because 18906314442873 - 2¹ = 18906314442871 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18906314442871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 595533628 + ... + 595565373.

It is an arithmetic number, because the mean of its divisors is an integer number (950497003596).

Almost surely, 2^{18906314442873} is an apocalyptic number.

18906314442873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18906314442873 is a deficient number, since it is larger than the sum of its proper divisors (11509589672199).

18906314442873 is a wasteful number, since it uses less digits than its factorization.

18906314442873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191099065.

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 18906314442873 in words is "eighteen trillion, nine hundred six billion, three hundred fourteen million, four hundred forty-two thousand, eight hundred seventy-three".